Amazon.com: ECO-WORTHY 12V 300AH LiFePO4 Lithium Battery Bluetooth with SOC... (https://www.amazon.com/ECO-WORTHY-Bluetooth-Protection-Off-Grid-HomeBackup/dp/B0DS3Y9TBQ/ref=pd_rhf_se_s_tdfy_rtpb_d_sccl_2_6/136-2797745-6754412?pd_rd_w=9nWHf&content-id=amzn1.sym.ab083468-a625-4f2d-af60-474be2ffd371&pf_rd_p=ab083468-a625-4f2d-af60-474be2ffd371&pf_rd_r=B6FXAVK8FDNCEF2MQQ10&pd_rd_wg=8q8ld&pd_rd_r=fecc0dac-e1f9-42ae-b457-56d90ffe2696&pd_rd_i=B0DJ2VHKLS&th=1)
Note the dimensions and the price with coupon.
Couldn't find any reviews on the 300ah, but did find two on their 280ah battery. Seems well made. Only drawback was the overcurrent protection is set north of 800a, which is above the limitations of the hardware (connections, cables, etc).
If replacing lead acid or AGM you had no over current protection, and those batteries will also pass a lot of current into a short circuit event. Battery cables become limiters. A group 31 can pass 1,000 amps into a starter motor. You can easily add fuses at the battery terminals.